The Usekh is a personal ornament, a type of collar or necklace

Necklace

A necklace is an article of jewellery which is worn around the neck. Necklaces are frequently formed from a metal jewellery chain. Others are woven or manufactured from cloth using string or twine....

, familiar to many because of its presence in widely-disseminated depictions of ancient Egyptian nobility, such as Tutankhamun

Tutankhamun

Tutankhamun , Egyptian , ; approx. 1341 BC – 1323 BC) was an Egyptian pharaoh of the 18th dynasty , during the period of Egyptian history known as the New Kingdom...

, where an example can be seen on the famous gold mask.

A collar

Collar (clothing)

In clothing, a collar is the part of a shirt, dress, coat or blouse that fastens around or frames the neck. Among clothing construction professionals, a collar is differentiated from other necklines such as revers and lapels, by being made from a separate piece of fabric, rather than a folded or...

is usually attached to a garment, whereas the usekh is a wide collar-shaped piece of jewellery draped around and supported by the neck and shoulders and without holes which would expose the skin underneath. It is almost a piece of clothing in its own right.

Usekh often contained precious stones and amulets, and were connected with clasps of gold.